Examine source code of OpsGuru Go Links

{
  "name": "OpsGuru Go Links",
  "description": "Redirects go links to Opsguru's Go Link Service",
  "version": "1.2.2",
  "homepage_url": "https://golinks.opsguru.io/",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {},
  "permissions": [
    "webRequest",
    "*://go/*",
    "webRequestBlocking",
    "tabs",
    "<all_urls>"
  ],
  "icons": {
    "16": "16.png",
    "32": "32.png",
    "48": "48.png",
    "128": "128.png"
  }
}